Auto merge of #484 - lu-zero:current-cargo-c, r=s3bk

Add a capi feature to support current cargo-c

It also possibly simplifies the building instructions since it will pick automatically the crates in the workspace marked with a `capi` feature.

Author: bors-servo

c/Cargo.toml

@@ -4,6 +4,9 @@ version = "0.1.0"
 authors = ["Patrick Walton <[email protected]>"]
 edition = "2018"
 
+[features]
+capi = []
+
 [lib]
 crate-type = ["staticlib"]
 name = "pathfinder"